Pack frame



FIG. 1 is a right-front perspective view of the pack frame;

FIG. 2 is a front view of the pack frame shown in FIG. 1;

FIG. 3 is a rear view of the pack frame shown in FIG. 1;

FIG. 4 is a left side view of the pack frame shown in FIG. 1;

FIG. 5 is a right side view of the pack frame shown in FIG. 1;

FIG. 6 is a top view of the pack frame shown in FIG. 1; and,

FIG. 7 is a bottom view of the pack frame shown in FIG. 1.

The subject matter shown in dashed lines, and any surfaces of the design not shown, including interior surfaces, form no part of the claimed invention. 

CLAIM I claim the ornamental design for a pack frame, as shown and described. 